CSEMP assessment of CB52 in sediment at inner (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 181.31 | 182.69 | -87.65 | 175.31 | | | |
| linear | 2 | 181.39 | 184.05 | -86.69 | 173.39 | 1.922 | 1 | 0.1656 |
| smooth (df = 2) | 3 | 182.94 | 187.48 | -86.47 | 172.94 | 0.450 | 1 | 0.5021 |
| smooth (df = 3) | 4 | 184.72 | 191.92 | -86.36 | 172.72 | 0.214 | 1 | 0.6438 |
| smooth (df = 4) | 5 | 185.00 | 195.88 | -85.50 | 171.00 | 1.726 | 1 | 0.1889 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 1999 | 2018 | -0.5851 | -0.1921 | 0.3931 | 0.2784 | 1.412 | 0.1799 |
| last 20 years | 1999 | 2018 | -0.5851 | -0.1921 | 0.3931 | 0.2784 | 1.412 | 0.1799 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.8252 | 0.1200 | -1.9282 | 0.1451 | -13.285 | 1.0000 |
| EAC | 0.8252 | 2.7000 | 1.1853 | 0.1451 | 8.167 | <0.0001 |
Raw data with supporting information
__sdmn_cb52_au.jpg "Raw data with supporting information for assessment of CB52 in sediment at inner (Firth of Clyde)")
Raw data with assessment
__sdmn_cb52_da.jpg "Raw data with assessment of CB52 in sediment at inner (Firth of Clyde)")
Assessment plot
__sdmn_cb52_as.jpg "Assessment plot for CB52 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls data
__sdmn_chlrda.jpg "Chlorobiphenyls data for assessment of CB52 in sediment at inner (Firth of Clyde)")
Chlorobiphenyls assessment
__sdmn_chlras.jpg "Chlorobiphenyls assessment of CB52 in sediment at inner (Firth of Clyde)")
Related pages
